La religione/ diretta da Frédéric Lenoir e Ysé Tardan-Masquelier; edizione italiana a cura di Paolo Sacchi
Roundtable on the Integration of Latin America and the Question of Constitutionality, Universidad Nacional de Colombia, Bogota, February 6-8, 1967 : Report of the General Secretariat
Round table: private foreign investment in Latin America : Rome, January 25-29, 1971 / Istituto italo-latino americano, Banco interamericano de desarrollo, Organización de los Estados Americanos
Round table on Air transport to latin America : complementary tourist expenses and promotion : report II: Promotion of package tours as a complement to air transport / [document prepared by the Ministry of information and tourism of Spain]